What must high-rise tenants be taught in order to effectively evacuate?

The correct choice emphasizes the necessity for high-rise tenants to understand the rationale behind either exiting the building or relocating to a safer area within it. This understanding is crucial because it equips tenants with the knowledge to make informed decisions during emergencies. If tenants know the potential risks and safe options available to them, they can act accordingly and efficiently in a stressful situation. For instance, if they comprehend that relocating to a designated safe area might offer the best protection in certain fire scenarios while the fire department is responding, they can avoid unnecessary panic and maintain safety.

In contrast, other options do not provide the same foundational knowledge needed for effective evacuation. Simply exiting immediately without clear communication can lead to chaos and confusion, potentially placing tenants in danger. Teaching the importance of fire department procedures, while valuable, might not directly assist tenants in making personal evacuation decisions in the moment of an emergency. Lastly, instructing tenants to use elevators during emergencies is generally considered unsafe, as elevators can malfunction or open on a floor with fire, leading to severe consequences. Therefore, having a comprehensive understanding of when to exit and when it's safer to relocate is vital for high-rise tenants to ensure their safety during a fire emergency.